Question

Bunaaa...am si eu nevoie de ajutorul vostru La exercitiul 7 "Calculati"

Answer 1

a)$(-\frac{1}{5})+(-\frac{3}{5})=\frac{-1-3}{5}=-\frac{4}{5}$
b)$(-\frac{1}{9})+\frac{7}{3}=-\frac{1}{9}+ \frac{21}{9}=\frac{20}{9}$
c)$\frac{3}{8}+(-\frac{5}{4})= \frac{3}{8}-\frac{10}{8}=-\frac{7}{8}$
d)14-3,24=10,76
e)8,5-1=7,5
f)$1\frac{3}{8}-1+\frac{2}{3}-\frac{4}{24}= \frac{33}{24}-\frac{24}{24}+\frac{16}{24}-\frac{4}{24}= \frac{21}{24}=\frac{7}{8}$